Biological Rhythms

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Micheal Siffre (1962)
Free-running study in the Southern Alps. Came up after 61 days on 17th Sept thinking it was 20th Aug.
1 of 14
Boivin et al (1996)
4 groups with reversed rhythms. very bright=advanced 5hrs, dim=drifted 1hr
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Czeisler et al (1996)
circadian rhythms can change from 13-65 hours (individual differences)
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Duffy
morning people sleep 7-10pm, night people 10-1am
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Folkard
12 and 13 year olds read a story at 9am or 3pm. those at 3pm remembered 8% more the next week due to body temperature
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Giesbrecht
cold water study - high temperature caused better performance in cognitive tasks
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Friedman and Fisher
psychiatric patients observed over 6 hour periods, found a 90 minute rest, eat, drink cycle
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Dement and Kleitman
dreams are reported in REM sleep
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Russel
placed sweat from one female onto the top lip of another (living apart). Their mentrual cycles matched up
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Empson
studied 21 males and found a 20 day cycle in alertness and temperature
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Morgan
bred mutant hamsters with 20 hour cycles. Put their SCN in normal hamsters and found they developed the cycle
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Darlington
identified the negitive feedback loop of proteins which takes 24hrs causing the biological clock (in fruit flies)
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Campbell and Murphy
shined light on the back of ps knees to change their circadian rhythms
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Stevens
explains why women in industrialised societies develop breast cancer (melatonin disruption)
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Other cards in this set

Card 2

Front

4 groups with reversed rhythms. very bright=advanced 5hrs, dim=drifted 1hr

Back

Boivin et al (1996)

Card 3

Front

circadian rhythms can change from 13-65 hours (individual differences)

Back

Preview of the back of card 3

Card 4

Front

morning people sleep 7-10pm, night people 10-1am

Back

Preview of the back of card 4

Card 5

Front

12 and 13 year olds read a story at 9am or 3pm. those at 3pm remembered 8% more the next week due to body temperature

Back

Preview of the back of card 5
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